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Worksheets

Analyzing Sequences and Series

Total questions: 16

Worksheet time: 14mins

Name
Class
Date
1.

Is the following sequence Geometric, Arithmetic, or Neither

3,6,12,24

a)

Geometric

b)

Neither

c)

Arithmetic

2.

Which sequences are arithmetic? Select all that apply.

a)

3,5,7,9

b)

4,7,10,12

c)

1/2, 1, 3/2, 2

d)

4,16,64,256

3.

Write the recursive rule of the following sequence.

3,21,147,1029

4 lines
4.

What is the third term of the sequence given the following rule.

f(n)= 3+4(n-1)

a)

16

b)

21

c)

11

d)

7

5.

Find the common difference of this Geometric sequence.

100, 50, 25, 12.5, 6.25

a)

1/2

b)

3/2

c)

2/5

d)

2/1

6.

Sister Shreya baked 300 cookies in week one, then every week she makes two-thirds (2/3) of the previous week's amount. How many cookies will she make in week 2?

4 lines
7.

Find the first 4 terms of the sequence given the following rule:
f(n)=3+4(n-1)

a)

f(1) = 3
f(2) = 7
f(3) = 14
f(4) 28

b)

f(1) = 4
f(2) = 8

f(3) = 12
f(4) = 16

c)

f(1) = 3
f(2) = 7
f(3) = 11
f(4) = 15

d)

f(1) = 3
f(2) = 6
f(3) = 9
f(4) = 12

8.

What could be a possible arithmetic equation if the common difference is -3?

a)

f(n) = 3+3(n-1)

b)

f(n) = 8+3(n-1)

c)

f(n) = 16-3(n-1)

d)

f(n) = -3+8(n-1)

9.

Fill in the blank of the arithmetic equation.

f(n)= f(1) + (n _ 1)+d

a)
  • Minus: -

b)

Plus: +

c)

Divide: `/.

d)

Multiply: x

10.

What could be the possible Geometric equations if the first term is 8?

Select all that apply.

a)

f(n) = 30*8^(n-1)

b)

f(n) = 8*-8^(n-1)

c)

f(n) = 3*9^(n-8)

d)

f(n) = 8*3^(n-1)

11.

What is the common difference of the following?
19, 14, 9, 4,.....

a)

-5

b)

5

c)

-4

d)

0.5

12.

If the common difference is 6, and the first term is 5, what would be the 21st term?

a)

124

b)

125

c)

127

d)

126

13.

The following is Geometric
1, 3, 9, 27,....

a)

True

b)

False

14.

Is the following Geometric, arithmetic, or neither?

19, 21, 23, 26, 32,...

a)

geometric

b)

arthimetic

c)

neither

15.

True or False: f(1) = 20; f(n) = f(n-1) + 30 is the explicit rule for arithmetic sequences.

a)

True

b)

False

16.

What is the explicit rule for this sequence and is it Geometric or arithmetic?
1/2, 4, 32, 256,...

a)

Geometric:
f(n) = 1/2 * 8^(n-1)

b)

Geometric:
f(n) = 1/2 * 4^(n-1)

c)

Arithmetic:
f(n) = 1/2 * 8^(n-1)

d)

Arithmetic:
f(n) = 1/2+8(n-1)